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Nico committed 2021-03-07 15:22:55 +01:00
1 parent d1710ea6a5
commit fb4da77359
211 files changed
+45363 -45571
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src/org/fife/ui/rsyntaxtextarea/RTfToText.java
+89 -101
View File
@@ -20,25 +20,24 @@ import java.io.StringReader;
* Gets the plain text version of RTF documents.
* <p>
*
* This is used by <code>RtfTransferable</code> to return the plain text
* version of the transferable when the receiver does not support RTF.
* This is used by <code>RtfTransferable</code> to return the plain text version
* of the transferable when the receiver does not support RTF.
*
* @author Robert Futrell
* @version 1.0
*/
final class RtfToText {
private Reader r;
private StringBuilder sb;
private StringBuilder controlWord;
private int blockCount;
private boolean inControlWord;
/**
* Private constructor.
*
* @param r
* The reader to read RTF text from.
* @param r The reader to read RTF text from.
*/
private RtfToText(Reader r) {
this.r = r;
@@ -47,15 +46,14 @@ final class RtfToText {
blockCount = 0;
inControlWord = false;
}
/**
* Converts the RTF text read from this converter's <code>Reader</code>
* into plain text. It is the caller's responsibility to close the
* reader after this method is called.
* Converts the RTF text read from this converter's <code>Reader</code> into
* plain text. It is the caller's responsibility to close the reader after this
* method is called.
*
* @return The plain text.
* @throws IOException
* If an IO error occurs.
* @throws IOException If an IO error occurs.
*/
private String convert() throws IOException {
// Skip over first curly brace as the whole file is in '{' and '}'
@@ -66,76 +64,76 @@ final class RtfToText {
while ((i = r.read()) != -1) {
char ch = (char) i;
switch (ch) {
case '{':
if (inControlWord && controlWord.length() == 0) { // "\{"
sb.append('{');
controlWord.setLength(0);
inControlWord = false;
} else {
blockCount++;
}
break;
case '}':
if (inControlWord && controlWord.length() == 0) { // "\}"
sb.append('}');
controlWord.setLength(0);
inControlWord = false;
} else {
blockCount--;
}
break;
case '\\':
if (blockCount == 0) {
if (inControlWord) {
if (controlWord.length() == 0) { // "\\"
sb.append('\\');
controlWord.setLength(0);
inControlWord = false;
} else {
endControlWord();
inControlWord = true;
}
case '{':
if (inControlWord && controlWord.length() == 0) { // "\{"
sb.append('{');
controlWord.setLength(0);
inControlWord = false;
} else {
blockCount++;
}
break;
case '}':
if (inControlWord && controlWord.length() == 0) { // "\}"
sb.append('}');
controlWord.setLength(0);
inControlWord = false;
} else {
blockCount--;
}
break;
case '\\':
if (blockCount == 0) {
if (inControlWord) {
if (controlWord.length() == 0) { // "\\"
sb.append('\\');
controlWord.setLength(0);
inControlWord = false;
} else {
endControlWord();
inControlWord = true;
}
} else {
inControlWord = true;
}
break;
case ' ':
if (blockCount == 0) {
if (inControlWord) {
endControlWord();
} else {
sb.append(' ');
}
}
break;
case ' ':
if (blockCount == 0) {
if (inControlWord) {
endControlWord();
} else {
sb.append(' ');
}
break;
case '\r':
case '\n':
if (blockCount == 0) {
if (inControlWord) {
endControlWord();
}
// Otherwise, ignore
}
break;
case '\r':
case '\n':
if (blockCount == 0) {
if (inControlWord) {
endControlWord();
}
break;
default:
if (blockCount == 0) {
if (inControlWord) {
controlWord.append(ch);
} else {
sb.append(ch);
}
// Otherwise, ignore
}
break;
default:
if (blockCount == 0) {
if (inControlWord) {
controlWord.append(ch);
} else {
sb.append(ch);
}
break;
}
break;
}
}
return sb.toString();
}
/**
* Ends a control word. Checks whether it is a common one that affects
* the plain text output (such as "<code>par</code>" or "<code>tab</code>")
* and updates the text buffer accordingly.
* Ends a control word. Checks whether it is a common one that affects the plain
* text output (such as "<code>par</code>" or "<code>tab</code>") and updates
* the text buffer accordingly.
*/
private void endControlWord() {
String word = controlWord.toString();
@@ -147,58 +145,50 @@ final class RtfToText {
controlWord.setLength(0);
inControlWord = false;
}
/**
* Converts the contents of the specified byte array representing
* an RTF document into plain text.
* Converts the contents of the specified byte array representing an RTF
* document into plain text.
*
* @param rtf
* The byte array representing an RTF document.
* @param rtf The byte array representing an RTF document.
* @return The contents of the RTF document, in plain text.
* @throws IOException
* If an IO error occurs.
* @throws IOException If an IO error occurs.
*/
public static String getPlainText(byte[] rtf) throws IOException {
return getPlainText(new ByteArrayInputStream(rtf));
}
/**
* Converts the contents of the specified RTF file to plain text.
*
* @param file
* The RTF file to convert.
* @param file The RTF file to convert.
* @return The contents of the file, in plain text.
* @throws IOException
* If an IO error occurs.
* @throws IOException If an IO error occurs.
*/
public static String getPlainText(File file) throws IOException {
return getPlainText(new BufferedReader(new FileReader(file)));
}
/**
* Converts the contents of the specified input stream to plain text.
* The input stream will be closed when this method returns.
* Converts the contents of the specified input stream to plain text. The input
* stream will be closed when this method returns.
*
* @param in
* The input stream to convert. This will be closed when this
* method returns.
* @param in The input stream to convert. This will be closed when this method
* returns.
* @return The contents of the stream, in plain text.
* @throws IOException
* If an IO error occurs.
* @throws IOException If an IO error occurs.
*/
public static String getPlainText(InputStream in) throws IOException {
return getPlainText(new InputStreamReader(in, "US-ASCII"));
}
/**
* Converts the contents of the specified <code>Reader</code> to plain text.
*
* @param r
* The <code>Reader</code>. This will be closed when this method
* returns.
* @param r The <code>Reader</code>. This will be closed when this method
* returns.
* @return The contents of the <code>Reader</code>, in plain text.
* @throws IOException
* If an IO error occurs.
* @throws IOException If an IO error occurs.
*/
private static String getPlainText(Reader r) throws IOException {
try {
@@ -208,15 +198,13 @@ final class RtfToText {
r.close();
}
}
/**
* Converts the contents of the specified String to plain text.
*
* @param rtf
* A string whose contents represent an RTF document.
* @param rtf A string whose contents represent an RTF document.
* @return The contents of the String, in plain text.
* @throws IOException
* If an IO error occurs.
* @throws IOException If an IO error occurs.
*/
public static String getPlainText(String rtf) throws IOException {
return getPlainText(new StringReader(rtf));